Nginx(engine x)是一个高性能的HTTP和反向代理服务器,也是一个IMAP/POP3/SMTP代理服务器. Nginx是由Igor Sysoev为俄罗斯访问量第二的Rambler.ru站点开发的,它已经在该站点运行超过两年半了.其特点是占有内存少，并发能力强，事实上Nginx 的并发能力确实在同类型的网页伺服器中表现较好。目前中国大陆使用Nginx网站用户有：新浪、网易、腾讯。

Changes with nginx 0.8.47                                        28 Jul 2010

    *) Bugfix: $request_time variable had invalid values for subrequests.

    *) Bugfix: errors intercepted by error_page could be cached.

    *) Bugfix: a cache manager process my got caught in an endless loop, if
       max_size parameter was used; the bug had appeared in 0.8.46.

下载地址：
http://nginx.org/download/nginx-0.8.47.tar.gz